Bollinger, L. L., & Tully, A. H. (1948). Personal aircraft business at airports. Harvard University.
Chicago Style (17. basım) AtıfBollinger, Lynn L., ve Arthur Houghton Tully. Personal Aircraft Business at Airports. Boston: Harvard University, 1948.
MLA (9th ed.) AtıfBollinger, Lynn L., ve Arthur Houghton Tully. Personal Aircraft Business at Airports. Harvard University, 1948.
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